The title of this episode is After, Before.
Its mostly pretty boring!
The problem now is figuring out whats wrong with the Zephyrs time engine.

Credit: Mitchell Haaseth/ABC
At this rate, the engine will be set to disintegrate in as little as two days.
Since Yo-Yos an Inhuman, maybe Jiaying will know whats up with her powers.
So she and May pay the Inhuman leader a visit.
After some blows are exchanged, the truth comes out.
When Yo-Yo was a kid staying at her uncles house, an armed robber showed up.
Its the Spider-Man/Uncle Ben origin story on speedrun, basically.
Around the same time they make this discovery, Jiaying is having trouble with an Inhuman student named Korra.
This is obviously a difficult power to control and a very traumatizing one to have to deal with.
Its hard to explain this to a young girl, however, especially one lacking traditional support structures.
Korra has an outburst and escapes the commune, whereupon she runs promptly into stupid Nathaniel Malick again.
We dont even get a mother-daughter reunion, because Jiaying refuses to abandon her people.
She and Gordo teleport back to the commune before the Quinjet makes it back to the Zephyr.
Yo-Yo manages to get over her mental block and removes the dangerous piece from the time engine.